This product is well made and works fine for small bulbs
This auger was a lifesaver.
I decided to plant over 2000 bulbs this year in virgin Hill Country (dry/rocky) land and I could not have done it without this drill attachment.
Obviously you need a good drill and I had a small generator and extension cords rather than batteries so I could keep working.
Tip : Do not hold drill too tight, that way if you hit a root / rock you release drill and do not twist your wrist.